EP2792884A1 - A centrifugal pump with four-point contact ball bearing - Google Patents

A centrifugal pump with four-point contact ball bearing Download PDF

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Publication number
EP2792884A1
EP2792884A1 EP20140163494 EP14163494A EP2792884A1 EP 2792884 A1 EP2792884 A1 EP 2792884A1 EP 20140163494 EP20140163494 EP 20140163494 EP 14163494 A EP14163494 A EP 14163494A EP 2792884 A1 EP2792884 A1 EP 2792884A1
Authority
EP
European Patent Office
Prior art keywords
bearing
shaft
centrifugal pump
housing
recited
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20140163494
Other languages
German (de)
English (en)
French (fr)
Inventor
Heikki Manninen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer Management AG
Original Assignee
Sulzer Pumpen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sulzer Pumpen AG filed Critical Sulzer Pumpen AG
Priority to EP20140163494 priority Critical patent/EP2792884A1/en
Publication of EP2792884A1 publication Critical patent/EP2792884A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/059—Roller bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/049—Roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • F16C19/166—Four-point-contact ball bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Definitions

  • the close-coupled centrifugal pumps aim, naturally, at a simplified construction and reduction in the costs of manufacture, assembly and maintenance of the centrifugal pumps, as a number of traditional components may be left out, like for instance the coupling, one shaft and two bearings.
  • a number of traditional components may be left out, like for instance the coupling, one shaft and two bearings.
  • the normal way of constructing, for instance, a close-coupled centrifugal pump is such that the centrifugal impeller is attached at the end of the shaft of the electric motor whereby the bearings of the electric motor have to be able to absorb both radial and axial loads subjected to the shaft of the motor.
  • standard electric motors which are, naturally, an attractive choice for driving centrifugal pumps due to their competitive price level, do not have a construction designed for handling the loads created by centrifugal pumps.
  • Practice has shown that either the bearings wear out very quickly or the bearing housings of the electric motors break, as they are not sturdy enough to absorb the forces subjected to them.
  • FIG. 2 illustrates a partial axial cross section of a centrifugal pump 40 in accordance with a preferred embodiment of the present invention.
  • the centrifugal pump 40 comprises a shaft 42 having a rotor 44, i.e. an impeller at its first axial end 42', and drive means, i.e. an electric drive motor 46 at its second axial end 42".
  • the shaft 42 if supported by the bearing housing 48 having a first axial end 48' with a first bearing assembly 50 and a second axial end 48" with a second bearing assembly 52.
  • the first bearing assembly 50 at the first end 48' of the bearing housing 48 is closer to the rotor 44 than the second bearing assembly 52 such that a shaft sealing 54 is arranged between the rotor 44 and the first bearing assembly 50.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20140163494 2013-04-19 2014-04-04 A centrifugal pump with four-point contact ball bearing Withdrawn EP2792884A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20140163494 EP2792884A1 (en) 2013-04-19 2014-04-04 A centrifugal pump with four-point contact ball bearing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13164522 2013-04-19
EP20140163494 EP2792884A1 (en) 2013-04-19 2014-04-04 A centrifugal pump with four-point contact ball bearing

Publications (1)

Publication Number Publication Date
EP2792884A1 true EP2792884A1 (en) 2014-10-22

Family

ID=48143136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20140163494 Withdrawn EP2792884A1 (en) 2013-04-19 2014-04-04 A centrifugal pump with four-point contact ball bearing

Country Status (5)

Country Link
US (1) US20140314599A1 (ru)
EP (1) EP2792884A1 (ru)
CN (1) CN104295504A (ru)
BR (1) BR102014008980A2 (ru)
RU (1) RU2014114211A (ru)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913006A (zh) * 2015-05-12 2015-09-16 江阴尚爵机械制造有限公司 新型高精度回转支承
CN111043068A (zh) * 2020-01-07 2020-04-21 江苏建安泵业制造有限公司 一种磁力泵轴承箱结构
WO2023151750A1 (de) * 2022-02-14 2023-08-17 Schaeffler Technologies AG & Co. KG Elektrischer achsantriebsstrang

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2856192T3 (es) * 2015-04-13 2021-09-27 Belenos Clean Power Holding Ag Compresor con dos elementos esféricos que soportan el eje
US11976593B1 (en) * 2022-10-24 2024-05-07 General Electric Company Bearing assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653721A1 (de) * 1967-03-08 1971-12-23 Halbergerhuette Gmbh Ein- oder mehrstufige Kreiselpumpe
CN2447239Y (zh) 2000-07-11 2001-09-12 中国第一汽车集团公司 汽车水泵
DE10204037A1 (de) * 2002-02-01 2003-08-21 Motoren Ventilatoren Gmbh Radialgebläse mit Elektromotor
WO2009127781A1 (en) 2008-04-18 2009-10-22 Randax Oy A method for manufacturing the frame of an electric machine, an electric machine and a frame of an electric machine
CN202140425U (zh) * 2011-07-15 2012-02-08 常州光洋轴承股份有限公司 大中型四点接触球轴承
CN202348990U (zh) * 2011-12-15 2012-07-25 西安航天泵业有限公司 分体轴瓦座式滑动轴承箱

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH579724A5 (ru) * 1973-09-21 1976-09-15 Thielenhaus Ernst Maschinenfab
US5494413A (en) * 1993-12-09 1996-02-27 Westinghouse Electric Corporation High speed fluid pump powered by an integral canned electrical motor
JPH084686A (ja) * 1994-06-15 1996-01-09 Keihin Seiki Mfg Co Ltd モータ式燃料ポンプにおける軸受装置
US5971621A (en) * 1998-05-04 1999-10-26 Ford Motor Company Axial shaft retention design
AU2008202487B2 (en) * 2007-06-05 2013-07-04 Resmed Motor Technologies Inc. Blower with Bearing Tube
CN201071842Y (zh) * 2007-06-28 2008-06-11 上海东方泵业(集团)有限公司 中开单级双吸离心泵

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653721A1 (de) * 1967-03-08 1971-12-23 Halbergerhuette Gmbh Ein- oder mehrstufige Kreiselpumpe
CN2447239Y (zh) 2000-07-11 2001-09-12 中国第一汽车集团公司 汽车水泵
DE10204037A1 (de) * 2002-02-01 2003-08-21 Motoren Ventilatoren Gmbh Radialgebläse mit Elektromotor
WO2009127781A1 (en) 2008-04-18 2009-10-22 Randax Oy A method for manufacturing the frame of an electric machine, an electric machine and a frame of an electric machine
CN202140425U (zh) * 2011-07-15 2012-02-08 常州光洋轴承股份有限公司 大中型四点接触球轴承
CN202348990U (zh) * 2011-12-15 2012-07-25 西安航天泵业有限公司 分体轴瓦座式滑动轴承箱

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913006A (zh) * 2015-05-12 2015-09-16 江阴尚爵机械制造有限公司 新型高精度回转支承
CN111043068A (zh) * 2020-01-07 2020-04-21 江苏建安泵业制造有限公司 一种磁力泵轴承箱结构
WO2023151750A1 (de) * 2022-02-14 2023-08-17 Schaeffler Technologies AG & Co. KG Elektrischer achsantriebsstrang

Also Published As

Publication number Publication date
CN104295504A (zh) 2015-01-21
US20140314599A1 (en) 2014-10-23
RU2014114211A (ru) 2015-10-20
BR102014008980A2 (pt) 2015-10-13

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